I have a black Aggressor with pale yellow/orange striping similar to the PS 85.
The only difference is the material used in the Aggressor. The PS is braided graphite /Kevlar. The Aggressor is just unidirectional graphite.
Nice stick...

I have one that looks like this http://tt.tennis-warehouse.com/showthread.php?t=366383
(Racket no. 2), but have only hit with it briefly. The mold looks different from my PS 6.0 85 re-editions, but not by much. Edges seem a bit sharper, especially at the PWS.
Not bad to hit with, but I did not get much feel, spin out of it, but that might have been the (seemingly) very old strings mainly. I will have it strung soon to be able compare directly to the PS.
Let us know how it goes with yours

They're a bit more flexible and a lot more arm friendly than a prostaff. I've got one leaded up to 14oz with a gut/poly hyrbid. The other one I've left in stock weight with orginal strings (its in inferior condition with previous owner sanding down the bevelles to make it 4 3/8. They did a lam job....).